The LPJ-20SP is a 20A Low-Peak™ Class J dual element Time-delay Fuse with a 300kA interrupting rating that allows for simple, worry-free installation in virtually any application. Fast short-circuit protection and dual-element, time-delay performance provide ultimate protection. Reduces existing fuse inventory by up to 33% when upgrading to Low-Peak fuses. Consistent 2:1 ampacity ratios for all Low-Peak fuse make selective coordination easy. Long time-delay minimizes needless fuse openings due to temporary overloads and transient surges. Current-limitation protects downstream components against damaging thermal and magnetic effects of short-circuit currents. Dual-element fuses have lower resistance than ordinary fuses so they run cooler. They can often be sized for back-up protection against motor burnout from overload or single-phasing if other overload protective devices fail.